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Individual
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Individual
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Priority to ES132013ApriorityCriticalpatent/ES132013A1/en
Publication of ES132013A1publicationCriticalpatent/ES132013A1/en
ES132013A1933-09-211933-09-21
An electro-mechanical device for the maneuver of diversion needles for trams, railways and similar routes.
ExpiredES132013A1
(en)